| Institution: | (1) Geologisches Institut, Albert-Ludwigs-Universität Freiburg, Albertstr. 23b, D–79104 Freiburg, Germany;(2) Department of Earth Sciences, Dalhousie University, Halifax, NS, B3H 3J5, Canada;(3) Institut für Mineralogie, Petrologie und Geochemie, Albert-Ludwigs-Universität Freiburg, Albertstr. 23b, D-79104 Freiburg, Germany;(4) Present address: Geologisch-Paläontologisches Institut, Bernoullistr. 32, CH–4056 Basel, Switzerland;(5) Present address: HSK, CH–5232 Villigen-HSK, Switzerland |
